| The load-bearing lightweight steel structure is built by welding the transverse and inclined lace bars on longitudinal chords, which is called the spatial steel frame. The concrete structure with spatial steel frame is gained by substituting spatial welding steel frame for binding steel skeleton in reinforced concrete structure. The spatial steel frame has certain stiffness and bearing capacity. Before hardening of concrete, the spatial steel frame can bear construction loads. The spatial steel frame can suspend formwork and pipelines during construction, and can reduce the number of main falsework. After hardening of concrete, the spatial steel frame and concrete work together.According to experimental research and theory analysis ,The main conclusion are as following:1,The finite element analysis is carried out by ANSYS10.0,and take into account factors such as the span-high ratio, different vertical loading, opening boxes. The properties of the simply supported deep beams are researched.2,The comparison of the tests of 4the concrete deep beams with spatial steel frame and 2reinfored concrete deep beams subjected to the vertical loads are carried out. The results of the tests showed that concrete deep beam with spatial steel frame have much higher stiffness, ultimate bearing capacity and deformation performance, compared with that of reinforced concrete deep beams.3,The finite element program ABAQUS is used to simulate the spatial steel frame concrete deep beam. A wide-ranging comparison is carried between the nonlinear finite element analysis and the results of experiment to verify the reliability of the finite element program ABAQUS. the behavior of spatial steel frame concrete deep beam are Verified further.
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